Run animates the automata--Stop ceases animation.
When Stop is on, the mouse can draw or erase live cells

Step shows the next generation of cells

Clear empties the field of live cells

Spray makes a random selection of the cells live

Glider drops a glider onto the board.
A Glider is an arrangement of live cells that reproduces itself in a different
position after a few generations.

Puffer drops a puffer onto the board.
A Puffer is a glider that leaves a trail.

Spinner drops a spinner onto the board.
There are two kinds of Spinners.
The big spinner rotates sixty degrees every twenty-one generations.
The small spinner rotates sixty degrees every three generations.

Thin Medium Thick Golay Preston are the choice of rules to
create live cells.
The images show what arrangement of cells generate a red cell
at the center in the next generation. Rotations of these arrangements also
generate a live cell.

Thin

Medium

Thick

Golay

Preston

The Thin, Medium, and Thick rules support one glider.
Thin tends to die out rapidly, Medium less rapidly, and Thick generally grows without limit.
Only thin supports the big spinner and puffer.
Thin, medium, and thick all support the small spinner.

Preston and Golay tend to grow without limit.

Preston supports two known gliders.

Golay has no known gliders, but grows wonderfully from three cells in a triangle. Try it.